Blockscout verification does not work

[ChiTimesChi]

Component

Forge

Have you ensured that all of these are up to date?

• Foundry
• Foundryup

What version of Foundry are you on?

forge 0.2.0 (b44b045 2023-02-21T00:11:41.592203605Z)

What command(s) is the bug in?

forge verify-contract

Operating System

Linux

Describe the bug

It is not possible to verify contracts on any of the blockscout explorers right now.

Steps to reproduce:

1. Clone the one and only Multicall repo: https://github.com/mds1/multicall
2. forge build
3. forge v --verifier blockscout --verifier-url https://blockscout.com/eth/mainnet/api 0xcA11bde05977b3631167028862bE2a173976CA11 Multicall3 fails with

Submitting verification for [src/Multicall3.sol:Multicall3] "0xcA11bde05977b3631167028862bE2a173976CA11".
2023-02-21T19:58:25.991351Z ERROR etherscan: Failed to deserialize response: data did not match any variant of untagged enum ResponseData res="{\"message\":\"Something went wrong.\",\"result\":null,\"status\":\"0\"}"

4. forge v --verifier blockscout --verifier-url https://blockscout.com/eth/mainnet/api --compiler-version 0.8.12 --num-of-optimizations 10000000 0xcA11bde05977b3631167028862bE2a173976CA11 Multicall3 yeilds the very same error message above.

[sakulstra]

I think slightly related - i tried to verify on metis blockscout via

forge script scripts/Myscript.s.sol:Deploy --rpc-url metis --broadcast --ledger --legacy --mnemonic-indexes ${MNEMONIC_INDEX} --sender ${LEDGER_SENDER} --verify -vvvv

While this does not error it also doesn't do any verification.

The blockscout api for verification is compatible with etherscan afaik - only difference is that you don't need an api key, so i guess it should work.

[Evalir]

Closing—duplicate of an existing newer verification issue and we've also merged a few improvements to blockscout verification which should have unblocked this.

[abhi3700]

The full command for deploying on explorers (other than etherscan) is:

$ forge script script/Load.s.sol:LoadScript --rpc-url $RPC_URL --private-key $DEPLOYER_PRIVATE_KEY --broadcast --verify --verifier blockscout --verifier-url $VERIFIER_URL

Please add /api? to the end of explorer url like this: "https://nova.subspace.network/api?". This is without any api key. Here, the block explorer is: "https://nova.subspace.network/".